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Sotto
Free, local noise cancellation for your Mac
Sotto removes background noise from your microphone in any macOS call app — Zoom, Google Meet, Teams, Discord, OBS. It runs DeepFilterNet3 entirely on your device, ships its own audio driver (no virtual cables), and needs no account or cloud. Free and open source (MIT). A no-subscription alternative to Krisp's core feature.
Top comment
Hey Product Hunt 👋 I'm the maker. I built Sotto after my Krisp trial ended and noise cancellation shut off mid-call — and I realized there was no good open-source option on macOS (NoiseTorch is Linux-only). Sotto adds a "Sotto Microphone" you select in any call app. It cleans your mic with DeepFilterNet3 on-device, ships its own Core Audio driver so there are no BlackHole cables to wire up, and sends nothing to the cloud. MIT-licensed. It's an early preview — mic noise removal works end-to-end and runs at ~4% CPU. Next up: a signed installer, an Intel build, and closing the last bit of the real-time quality gap. Would love your feedback — AMA about the audio driver or the on-device model!
About Sotto on Product Hunt
“Free, local noise cancellation for your Mac ”
Sotto was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #153 on the daily leaderboard. Sotto removes background noise from your microphone in any macOS call app — Zoom, Google Meet, Teams, Discord, OBS. It runs DeepFilterNet3 entirely on your device, ships its own audio driver (no virtual cables), and needs no account or cloud. Free and open source (MIT). A no-subscription alternative to Krisp's core feature.
On the analytics side, Sotto competes within Mac, Open Source, Privacy and GitHub — topics that collectively have 225.6k followers on Product Hunt. The dashboard above tracks how Sotto performed against the three products that launched closest to it on the same day.
Who hunted Sotto?
Sotto was hunted by Pavan Naga. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Sotto including community comment highlights and product details, visit the product overview.

